Maps and GPS directions to Dunkin Donuts Murrysville and other Dunkin Donuts in the United States. Find your nearest Dunkin Donuts. Dunkin' Donuts claims to be the "world's largest coffee and baked goods chain," serving 2.7 million customers per day at over 7,000 stores globally which includes approximately 5,300 Dunkin' Donuts locations in 34 states throughout the USA. This figure compares with the 10,800 stores of coffee chain Starbucks, whose baked goods are usually prepared out of shop. Most Dunkin' Donuts stores are franchises.